import Vue from 'vue'
import VueRouter from 'vue-router'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import GoodsList from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'






Vue.use(VueRouter)

const routes = [
  {
    path: '/',
    component: () => import('../components/login.vue')
  },
  {
    path: '/login',
    name: 'login',
    component: () => import('../components/login.vue')
  },
  {
    path: '/home',
    name: 'home',
    component: Home,
    redirect: '/Welcome',
    children: [
      {
        path: '/Welcome', component: Welcome
      },
      {
        path: '/users', component: Users
      },
    { path:'/rights',component:Rights},
    {path:'/roles',component:Roles},
    {path:'/categories',component:Cate},
    {path:'/params',component:Params},
    {path:'/goods',component:GoodsList},
    {path:'/goods/add',component:Add},
    ]
  },
]


const router = new VueRouter({
  routes
})

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to 将要访问的路径
  // from 代表从哪个路径跳转而来
  // next 是一个函数，表示放行
  //     next()  放行    next('/login')  强制跳转

  if (to.path === '/login') return next()
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})

export default router